Medical Staff

William Haug, DO
Professional Education
- Internship, Delaware Valley Hospital (1971-1972)
- D.O., Philadelphia College of Osteopathic Medicine (1971)
- B.S., Miami University, Oxford, OH (1967)
- A.S., York Junior College (1965)

Jacek Obara, MD
Professional Education
- Board Certified, Family Medicine
- Residency, Southern Illinois University Family Practice, Springfield, IL (2005-2008)
- M.D., Memorial University of Newfoundland, St. John’s, NF Canada (2003)
- B.A., New York University, NY (1997)

Krista Dankiw-Ludwig, MSN, CRNP, WHNP-BC
Professional Education
- Women’s HealthCare Nurse Practitioner, Board Certified (2012)
- Thomas Jefferson University, MSN (2012)
- Thomas Jefferson University, BSN (2008)
- Millersville University, BA in psychology, biology minor (2005)

Kai Moy, M.D.
Professional Education
- Board Certified, American Board of Pediatrics
- Internship/Residency Pediatrics, New York University Medical Center, Bellevue Hospital Center, New York, NY (1983–1986)
- Albany Medical College, Albany, NY, M.D. (1983)
- New York University, B.A. cum laude (1979)

Irene Shepherd, CPNP
Professional Education
- Board Certified, Pediatric Nurse Practitioner
- C.P.N.P., C.M.O., M.S. Nursing, University of Pennsylvania, Philadelphia, PA (1996)
- B.S., Nursing, University of Pennsylvania, Philadelphia, PA (1980)

Natalia Massias, CRNP, FNP-C
Professional Education
- Board Certified, Family Nurse Practitioner
- C.R.N.P., F.N.P., M.S. Nursing, University of Pennsylvania, Philadelphia, PA (2019)
- B.S., Nursing, Widener University, Philadelphia, PA (2016)